1218692

Information

• Patent Grant
• 1218692

• References
• Source

• Patent Number

  1,218,692

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1917
  107 years ago

• CPC

  • G04C13/027 - master-slave systems using transmission of other driving signals

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology